1. epidemiology and control of nematode infections;Anderson,1978
2. Seasonal fluctuations of nematode populations inbreeding ewes and lambs;Ayalew,1973
3. Grazing management and control of parasites in sheep;Barger,1978
4. Feeding and pasture management of nursingand weaned lambs;Blakeslee;Michigan Agriculture Experimental Station Quarterly Bull.,1965
5. Epidemiological studies on gastrointestinal nematodeparasites of sheep;Boag;Infection patterns on clean and autumn-contaminated pasture. Res. Vet. Sci.,1971